<!--
    ScadaBR - Open Source M2M - http://mango.serotoninsoftware.com
    Copyright (C) 2006-2009 Serotonin Software Technologies Inc.
    @author Matthew Lohbihler
    
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see http://www.gnu.org/licenses/.
 -->
<!--<h1>Overview</h1>-->
<!--<p>The NMEA listener data source is used to receive messages from-->
<!--NMEA 0183 compliant equipment. Devices are connected via RS232 or RS485-->
<!--(requires adapter) ports. This data source receives regular updates from-->
<!--the connected devices; it does not poll.</p>-->
<h1>Descri&ccedil;&atilde;o</h1>
<p>O data source auditor NMEA &eacute; utilizado para receber
mensagens de equipamentos compat&iacute;veis com o protocolo NMEA 0183.
Os dispositivos s&atilde;o conectados atrav&eacute;s de portas seriais
RS232 e RS485 (s&atilde;o necess&aacute;rios os adaptadores). Este data
source recebe atualiza&ccedil;&otilde;es regulares dos dispositivos
conectados, mas n&atilde;o executa <i>poll</i>.</p>


<!--<h1>Configuration</h1>-->
<!--<p>Every data source requires a <b>Name</b>, which can be any-->
<!--description. The <b>Port</b> selection provides a list of all available-->
<!--serial ports on the host hardware. This corresponds to the port into-->
<!--which the NMEA equipment is connected. The <b>Baud rate</b> is the rate-->
<!--at which your equipment can communicate its messages. Typically this-->
<!--value is 4800, but other values are possible. Consult your NMEA-->
<!--documentation for details. Checksum values are validated if they are-->
<!--included in the message. If the checksum validation fails, the message-->
<!--is ignored.</p>-->
<h1>Configura&ccedil;&atilde;o</h1>
<p>Todo data source necessita de um <b>Nome</b>, que pode conter
qualquer descri&ccedil;&atilde;o. A sele&ccedil;&atilde;o de <b>Porta</b>
fornece uma lista de todos as portas seriais dispon&iacute;veis no
hardware que hospeda a aplica&ccedil;&atilde;o. Isto corresponde
&agrave; porta onde o equipmento NMEA est&aacute; conectado. O valor de
<b>Baud rate</b> &eacute; a taxa com a qual o equipamento pode comunicar
suas mensagens. Este valor &eacute; tipicamente 4800, mas outros valores
s&atilde;o poss&iacute;veis, consulte a documenta&ccedil;&atilde;o do
equipamento para detalhes. Valores de checksum s&atilde;o validados se
s&atilde;o inclu&iacute;dos na mensagem. Se a valida&ccedil;&atilde;o do
checksum falha, a mensagem &eacute; ignorada.</p>

<!--<h1>NMEA message listener</h1>-->
<!--<p>Once the NMEA equipment has been connected to the host, a-->
<!--listener can be started that waits for messages to arrive. The arrival-->
<!--rate of messages depends upon the equipment. Messages will be displayed-->
<!--excluding the message "envelop", i.e. the "$" start indicator, the CRLF-->
<!--end indicator, and the "*" and checksum value if it is present.</p>-->
<!--<p>Messages that are displayed are suitable for copying and pasting-->
<!--into the <b>Regex test message</b> box for testing against your points'-->
<!--regex.</p>-->
<h1>Auditor de mensagens NMEA</h1>
<p>Assim que o equipamento NMEA estiver conectado ao hardware
hospedeiro, um auditor pode ser iniciado para aguardar a chegada de
mensagens. A taxa de chegada de mensagens depende do equipamento. As
mensagens ser&atilde;o exibidas com os "envelopes" da mensagens
exclu&iacute;dos, por exemplo, o indicador de in&iacute;cio "$", o
indicador de fim CRLF e dos valores "*" e checksum, caso estejam
presentes. As mensagens exibidas s&atilde;o adequadas para copiar e
colar em uma caixa <b>teste de Regex de mensagem</b> para teste nas
regex dos pontos.</p>